Possessive pronouns     German English     feminine masculine neutral     Nominative unsere unserer unseres ours   Genitive not used * not used * not used * of ours   Dative unserer unserem unserem to ours   Accusative unsere unseren unseres ours               Nominative unsere unsere unsere ours   Genitive not used not used not used of ours   Dative unseren unseren unseren to ours   Accusative unsere unsere unsere ours

* In common language the Genitive of the substantival possessive pronoun is not used. There is another form of a possessive that could be used (der unsrige, die unsrige, das unsrige), but it sounds really antiquated. If you want to form a Genitive of unser it is mostly done like in English.

Das ist der Schlüssel von unserem (Auto etc.). This is the key to ours. (car etc.)

Example: die Schachtel (= box) possessed object => feminine, singular

Ich sehe meine, aber unsere nicht. I see mine but not ours.

Example: das Kleid (= dress) possessed object => neutral, singular

Du kannst mit unserem hingehen. You can go in ours.

Example: die Häuser (= house) possessed object => neutral, plural

Ich sehe unsere, aber ihre nicht. I see ours but not hers.